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In this paper, we focus on protecting the sink's location when global-eavesdropper exists in wireless sensor networks. The adversary is assumed to have the ability to monitor all the communications of the network, which means that she can follow a route of a message and find the location of sink node easily. In this case, we introduce several fake sinks to confuse the adversary such that she has to...
This paper addresses the Fault-Tolerant topology control problem in a heterogeneous wireless sensor network consisting of resource-abundant cluster nodes and resource-constrained common nodes. Traditionally, the network redundancy can increase its robustness. K-Connectivity means that each node or some special nodes keep at least k disjoint paths and is an effective method of providing fault tolerance...
Data aggregation has been emerged as a basic approach in wireless sensor networks (WSNs) in order to reduce the number of transmissions of sensor nodes. In this paper, we propose an energy-efficient model based on improved BP neural network by particle swarm optimization (PSO-BPNN) in WSNs. The global optimized initial weights and threshold of BP network are obtained by PSO. And then PSO-BPNN is deployed...
The multi-criteria degree-constrained minimum spanning tree problem (mcd-MST) is an important issue in wireless sensor networks (WSNs) topology control. However, the multi-criteria MST (mc-MST) is NP-hard problem and mcd-MST is a typical mc-MST. In this paper, we present an improved discrete particle swarm optimization (PSO) approach for mcd-MST which gives a good compromise between many key objectives...
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